E-numbers 101

E-numbers 101 tells you what's really in your food. Scan an ingredient list or a barcode and see every additive at a glance: what it does, where it usually comes from, whether it suits your diet, and how often you eat it.

SCAN WHAT YOU EAT
• Point the camera at an ingredient list and E-numbers 101 picks out every additive, by code (E330, E 471, INS 211) or by name, in English and several European languages
• Scan a barcode, type its number or search by product name to look a product up in Open Food Facts, with its Nutri-Score and NOVA group
• Read ingredients or a barcode from a photo, or type and paste a list
• Product missing? Scan its ingredients or add it by hand, and get help adding it to Open Food Facts

KNOW EVERY E-NUMBER
• Over 650 additives, from E100 colours to E1000+ modified starches
• What each one does, where it usually comes from (plant, animal, insect, mineral, fermentation or synthetic) and whether it's vegetarian or vegan
• EFSA safety evaluations and acceptable daily intakes
• Search by E-number or name, or browse by group

YOUR AVOID LIST
• Mark additives to avoid, or add a ready-made set such as the "Southampton Six" colours
• Choose vegetarian or vegan to flag additives from animals or insects
• Turn on sensitivities such as sulphites, soy, milk, gluten, phenylalanine (PKU), azo dyes, benzoates or polyols
• Flagged additives are marked everywhere they appear

LOG AND LEARN
• Add what you eat to breakfast, lunch, dinner and snacks, and see every additive you had today
• Products you scan or add are saved, so you can log them again in one tap
• Compare up to three products side by side
• Each additive's page shows how often you've eaten it and in which products

STATISTICS
• Charts of your additives over a week, a month, three months, a year or all time
• See them by group and origin, your top additives and products, and the meals and times they come with
• Colour the charts by group, origin or your avoid list
• Export your log as a spreadsheet (CSV) or a PDF report

ALWAYS WITHIN REACH
• Home Screen and Lock Screen widgets show today's additives
• Ask Siri "What is E471?" or log a saved product by voice
• Find any E-number or saved product with Spotlight
• Touch and hold the app icon to scan, open Today or log your last product
• Your log, products and avoid list sync across your devices with iCloud

DESIGNED FOR IPAD AND MAC
• Lists and details side by side, with a statistics dashboard
• Open additives and products in their own windows
• Drag and drop, context menus and keyboard shortcuts

BUILT FOR EVERYONE
• VoiceOver, with spoken scan results and audio graphs for every chart
• Voice Control, larger text, dark mode and reduced motion
• Avoided additives are marked with a symbol as well as colour
• English, Dutch, German, French and Spanish

Product data comes from Open Food Facts, the free, open food database built by volunteers (Open Database License). The additive list is based on Open Food Facts' additive taxonomy and EFSA evaluations.

Your log stays on your devices and in your own iCloud account. E-numbers 101 has no ads, no tracking and no account.

E-numbers 101 is for general information and isn't medical advice. Additive lists may be incomplete, and rules differ between countries. Always check the package if you have an allergy or medical condition.